a, b = 10, 20
print(a, b)
# 比较运算，得到的结果都是布尔类型：真，假
print(a > b)  # F
print(a < b)  # T
print(a <= b)  # T
print(a >= b)  # F
print(a == b)  # F 一个=是赋值，两个==是比较
print(a != b)  # T
